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Originally Posted by Seriak
It looks like TimT is the better solution then for Mag Chloride as it would only cost 86ish for a 50lb bag. I wonder if one is pharmaceutical grade which might explain the difference.
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My Mag is Dead Sea Works(from the Dead Sea in Israel) which is Tech grade. I have been using it for at least 3 years with no problems. While we are on the topic of USP or FCC or Tech Grade chemicals. What do you think the $35 buckets of IO salt are made from... they are too cheap to be USP grade.
Cheers,
Tim